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        <h2 style="font-family:Microsoft YaHei,'微软雅黑';font-size:30px;text-align:center;">钢丝杨氏模量的测定3</h2>
        <div class='text-center'><span style="font-family:Microsoft YaHei,'微软雅黑';font-size:16px;">总分：</span><span
                style='color:red;font-family:Microsoft YaHei,' 微软雅黑';font-size:16px;'>100</span></div><br />
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            <div class="panel-heading row"><span class='col-md-7 text-left'>实验目的</span>
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                        本实验采用拉伸法测量杨氏模量，要求掌握利用光杠杆测定微小形变的方法，在数据处理中，掌握逐差法和作图法两种数据处理的方法。</span><br /></div>
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            <div class="panel-heading row"><span class='col-md-7 text-left'>实验仪器</span>
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                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>MYC-1</span><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>型金属丝杨氏模量测定仪（一套），钢卷尺，米尺，螺旋测微计，重垂等。</span><br />
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            <div class="panel-heading row"><span class='col-md-7 text-left'>实验原理</span>
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                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>
                        在胡克定律成立的范围内，应力F/S和应变ΔL/L之比满足</span><br /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>
                        E=（F/S）/（ΔL/L）=FL/（SΔL）</span><br /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>
                        其中E为一常量，称为杨氏模量，其大小标志了材料的刚性。</span><br /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>
                        根据上式，只要测量出F、ΔL/L、S就可以得到物体的杨氏模量，又因为ΔL很小，直接测量困难，故采用光杠杆将其放大，从而得到ΔL。</span><br /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>实验原理图如下图：</span><br /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>
                    </span>
                    <image alt='点击查看大图' title='点击查看大图' onclick='ShowBigImage(this);'
                        src=''
                        width='315.702479338843' height='150.413223140496' /><br /><span
                        style='color:#000000;font-family:Times New Roman;font-size:14px;font-style:Normal;font-weight:Normal'>
                        图1.光杠杆原理图</span><br /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>
                    </span><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>当θ很小时，</span>
                    <image alt='点击查看大图' title='点击查看大图' onclick='ShowBigImage(this);'
                        src=''
                        width='150' height='32' /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>，</span><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>其中</span><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>l</span><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>是光杠杆的臂长。</span><br /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>
                        由光的反射定律可以知道，镜面转过θ，反射光线转过</span><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>2</span><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>θ，而且有：</span><br /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'></span>
                    <image alt='点击查看大图' title='点击查看大图' onclick='ShowBigImage(this);'
                        src=''
                        width='141.818181818182' height='58.1818181818182' /><br /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>
                    </span><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>故：</span>
                    <image alt='点击查看大图' title='点击查看大图' onclick='ShowBigImage(this);'
                        src=''
                        width='85.9504132231405' height='48.7603305785124' /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>，即是</span>
                    <image alt='点击查看大图' title='点击查看大图' onclick='ShowBigImage(this);'
                        src=''
                        width='80.1652892561983' height='47.1074380165289' /><br /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>那么</span>
                    <image alt='点击查看大图' title='点击查看大图' onclick='ShowBigImage(this);'
                        src=''
                        width='82.6446280991735' height='46.2809917355372' /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>，最终也就可以用这个表达式来确定杨氏模量</span><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>E</span><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>。</span><br />
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            <div class="panel-heading row"><span class='col-md-7 text-left'>实验内容</span>
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                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>1．调节仪器</span><br /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>（1）调节放置光杠杆的平台F与望远镜的相对位置，使光杠杆镜面法线与望远镜轴线大体重合。</span><br /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>（2）调节支架底脚螺丝，确保平台水平，调平台的上下位置，使管制器顶部与平台的上表面共面。</span><br /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>（3）光杠杆的调节，光杠杆和镜尺组是测量金属丝伸长量ΔL的关键部件。光杠杆的镜面（1）和刀口（3）应平行。使用时刀口放在平台的槽内，支脚放在管制器的槽内，刀口和支脚尖应共面。</span><br /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>（4）镜尺组的调节，调节望远镜、直尺和光杠杆三者之间的相对位置，使望远镜和反射镜处于同等高度，调节望远镜目镜视度圈（4），使目镜内分划板刻线（叉丝）清晰，用手轮（5）调焦，使标尺像清晰。</span><br /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>2．测量</span><br /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>（1）砝码托的质量为m0，记录望远镜中标尺的读数r0作为钢丝的起始长度。</span><br /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>（2）在砝码托上逐次加500g砝码（可加到3500g），观察每增加500g时望远镜中标尺上的读数ri，然后再将砝码逐次减去，记下对应的读数</span>
                    <image alt='点击查看大图' title='点击查看大图' onclick='ShowBigImage(this);'
                        src=''
                        width='15.7093094733966' height='15.7093094733966' /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>，取两组对应数据的平均值</span>
                    <image alt='点击查看大图' title='点击查看大图' onclick='ShowBigImage(this);'
                        src=''
                        width='17.2802404207363' height='28.5499624342599' /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>。</span><br /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>（3）用米尺测量金属丝的长度L和平面镜与标尺之间的距离D，以及光杠杆的臂长</span>
                    <image alt='点击查看大图' title='点击查看大图' onclick='ShowBigImage(this);'
                        src=''
                        width='11.2697220135237' height='18.0315552216379' /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>。</span><br /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>3．数据处理</span><br /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>（1）逐差法</span><br /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>用螺旋测微计测金属丝直径d，上、中、下各测2次，共6次，然后取平均值。将</span>
                    <image alt='点击查看大图' title='点击查看大图' onclick='ShowBigImage(this);'
                        src=''
                        width='17.2802404207363' height='28.5499624342599' /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>每隔四项相减，得到相当于每次加2000g的四次测量数据，如设</span>
                    <image alt='点击查看大图' title='点击查看大图' onclick='ShowBigImage(this);'
                        src=''
                        width='86.0596953759989' height='25.9545113038727' /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>，</span>
                    <image alt='点击查看大图' title='点击查看大图' onclick='ShowBigImage(this);'
                        src=''
                        width='80.5955877330782' height='24.5884843931425' /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>，</span>
                    <image alt='点击查看大图' title='点击查看大图' onclick='ShowBigImage(this);'
                        src=''
                        width='83.3276415545385' height='29.369578580698' /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>和</span>
                    <image alt='点击查看大图' title='点击查看大图' onclick='ShowBigImage(this);'
                        src=''
                        width='81.9616146438084' height='25.9545113038727' /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>并求出平均值和误差。</span><br /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>将测得的各量代入式（5）计算E，并求出其误差（ΔE/E和ΔE），正确表述E的测量结果。</span><br /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>（2）作图法</span><br /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>把式（5）改写为</span><br /><span
                        style='color:#000000;font-family:宋体;font-size:18px;font-style:Normal;font-weight:Normal'>
                    </span>
                    <image alt='点击查看大图' title='点击查看大图' onclick='ShowBigImage(this);'
                        src=''
                        width='239' height='33' /><span
                        style='color:#000000;font-family:宋体;font-size:18px;font-style:Normal;font-weight:Normal'>
                    </span><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>（6）</span><br /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>其中</span>
                    <image alt='点击查看大图' title='点击查看大图' onclick='ShowBigImage(this);'
                        src=''
                        width='123.140495867768' height='23.9669421487602' /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>，在一定的实验条件下，M是一个常量，若以</span>
                    <image alt='点击查看大图' title='点击查看大图' onclick='ShowBigImage(this);'
                        src=''
                        width='17.2802404207363' height='28.5499624342599' /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>为纵坐标，Fi为横坐标作图应得一直线，其斜率为M。由图上得到M的数据后可由式（7）计算杨氏模量</span><br /><span
                        style='color:#000000;font-family:宋体;font-size:18px;font-style:Normal;font-weight:Normal'>
                    </span>
                    <image alt='点击查看大图' title='点击查看大图' onclick='ShowBigImage(this);'
                        src=''
                        width='138.181818181818' height='23.6363636363636' /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>
                        （</span><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>7）</span><br /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>4．注意事项</span><br /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>（1）调整好光杠杆和镜尺组之后，整个实验过程都要防止光杠杆的刀口和望远镜及竖尺的位置有任何变动，特别在加减砝码时要格外小心，轻放轻取。</span><br /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>（2）按先粗调后细调的原则，通过望远镜筒上的准星看反射镜，应能看到标尺，然后再细调望远镜。调目镜可以看清叉丝，调聚焦旋钮可以看清标尺。</span><br /><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>5</span><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>．</span><span
                        style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>计算涉及相关公式</span><br />
                    <image alt='点击查看大图' title='点击查看大图' onclick='ShowBigImage(this);'
                        src=''
                        width='473.494527074705' height='348.716737217322' /><br />
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                    <div class="panel-heading row"><span class='col-md-8 text-left'><span
                                style='color:#000000;font-family:Arial,Simsun;font-size:14;font-style:Normal;font-weight:Normal'>实验内容：用拉伸法测杨氏模量</span></span>
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                                style='color:#000000;font-family:Arial,Simsun;font-size:14;font-style:Normal;font-weight:Normal'>(1)
                                实验中给定的基本数据如下：一个砝码的质量m=（500±5）g，Δm=5g，ΔD=2mm，ΔL=2mm，Δl=0.5mm</span><br /><span
                                style='color:#000000;font-family:Arial,Simsun;font-size:14;font-style:Normal;font-weight:Normal'>钢丝直径d（六次测量结果）：</span><br />
                            <div style='overflow: auto; max-width:900px;'>
                                <table id=YSML_GSZJList class='TList' border="1">
                                    <tr>
                                        <td width='auto' align='center'>测量序号</td>
                                        <td width='auto' align='center'>1</td>
                                        <td width='auto' align='center'>2</td>
                                        <td width='auto' align='center'>3</td>
                                        <td width='auto' align='center'>4</td>
                                        <td width='auto' align='center'>5</td>
                                        <td width='auto' align='center'>6</td>
                                    </tr>
                                    <tr>
                                        <td width='auto' align='center'>钢丝直径/mm</td>
                                        <td width='auto' align='center'><input id='YSML_GSZJList' value='0.295'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                        <td width='auto' align='center'><input id='YSML_GSZJList' value='0.294'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                        <td width='auto' align='center'><input id='YSML_GSZJList' value='0.295'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                        <td width='auto' align='center'><input id='YSML_GSZJList' value='0.296'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                        <td width='auto' align='center'><input id='YSML_GSZJList' value='0.296'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                        <td width='auto' align='center'><input id='YSML_GSZJList' value='0.294'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                    </tr>
                                </table>
                            </div>
                            <div class='lineDiv'></div><span
                                style='color:#000000;font-family:Arial,Simsun;font-size:14;font-style:Normal;font-weight:Normal'>金属丝直径的平均值d(单位：mm)=</span><input
                                id=YSML_JSSZJPJZ value='0.295' type='number' class='inputtext'
                                style='border:none; border-bottom:1px solid black;width:80px' /><br />
                            <div class='lineDiv'></div><span
                                style='color:#000000;font-family:Arial,Simsun;font-size:14;font-style:Normal;font-weight:Normal'>取置信区间p=0.95，那么它的展伸不确定度为Ud0.95(单位：mm)=</span><input
                                id=YSML_GSZJUD095 value='0.0034' type='number' class='inputtext'
                                style='border:none; border-bottom:1px solid black;width:80px' /><br />
                            <div class='lineDiv'></div><span
                                style='color:#000000;font-family:Arial,Simsun;font-size:14;font-style:Normal;font-weight:Normal'>金属丝原长L(单位:mm)=</span><input
                                id=YSML_GSYCL value='0.9976' type='number' class='inputtext'
                                style='border:none; border-bottom:1px solid black;width:80px' /><br />
                            <div class='lineDiv'></div><span
                                style='color:#000000;font-family:Arial,Simsun;font-size:14;font-style:Normal;font-weight:Normal'>光杠杆的臂长l(单位:mm)=</span><input
                                id=YSML_GGGBC value='0.0711' type='number' class='inputtext'
                                style='border:none; border-bottom:1px solid black;width:80px' /><br />
                            <div class='lineDiv'></div><span
                                style='color:#000000;font-family:Arial,Simsun;font-size:14;font-style:Normal;font-weight:Normal'>标尺到平面镜的距离D(单位:mm)=</span><input
                                id=YSML_BCToGlassJL value='1.2018' type='number' class='inputtext'
                                style='border:none; border-bottom:1px solid black;width:80px' /><br />
                            <div class='lineDiv'></div><span
                                style='color:#000000;font-family:Arial,Simsun;font-size:14;font-style:Normal;font-weight:Normal'>(2)
                                实验中测量得到的数据如下</span><br /><span
                                style='color:#000000;font-family:Arial,Simsun;font-size:14;font-style:Normal;font-weight:Normal'>增减砝码过程中刻度指示的变化如下(0表示托盘上无砝码)：</span><br />
                            <div style='overflow: auto; max-width:900px;'>
                                <table id=YSML_ZJFMKDFList class='TList' border="1">
                                    <tr>
                                        <td width='auto' align='center'>托盘上的砝码质量/g</td>
                                        <td width='auto' align='center'>0</td>
                                        <td width='auto' align='center'>500</td>
                                        <td width='auto' align='center'>1000</td>
                                        <td width='auto' align='center'>1500</td>
                                        <td width='auto' align='center'>2000</td>
                                        <td width='auto' align='center'>2500</td>
                                        <td width='auto' align='center'>3000</td>
                                        <td width='auto' align='center'>3500</td>
                                    </tr>
                                    <tr>
                                        <td width='auto' align='center'>加砝码过程刻度/cm</td>
                                        <td width='auto' align='center'><input id='YSML_ZJFMKDFList' value='0.00'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                        <td width='auto' align='center'><input id='YSML_ZJFMKDFList' value='1.15'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                        <td width='auto' align='center'><input id='YSML_ZJFMKDFList' value='2.32'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                        <td width='auto' align='center'><input id='YSML_ZJFMKDFList' value='3.50'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                        <td width='auto' align='center'><input id='YSML_ZJFMKDFList' value='4.69'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                        <td width='auto' align='center'><input id='YSML_ZJFMKDFList' value='5.85'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                        <td width='auto' align='center'><input id='YSML_ZJFMKDFList' value='7.01'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                        <td width='auto' align='center'><input id='YSML_ZJFMKDFList' value='8.20'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                    </tr>
                                    <tr>
                                        <td width='auto' align='center'>减砝码过程刻度/cm</td>
                                        <td width='auto' align='center'><input id='YSML_ZJFMKDFList' value='0.00'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                        <td width='auto' align='center'><input id='YSML_ZJFMKDFList' value='1.13'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                        <td width='auto' align='center'><input id='YSML_ZJFMKDFList' value='2.32'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                        <td width='auto' align='center'><input id='YSML_ZJFMKDFList' value='3.50'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                        <td width='auto' align='center'><input id='YSML_ZJFMKDFList' value='4.67'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                        <td width='auto' align='center'><input id='YSML_ZJFMKDFList' value='5.83'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                        <td width='auto' align='center'><input id='YSML_ZJFMKDFList' value='7.03'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                        <td width='auto' align='center'><input id='YSML_ZJFMKDFList' value='8.22'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                    </tr>
                                    <tr>
                                        <td width='auto' align='center'>平均值/cm</td>
                                        <td width='auto' align='center'><input id='YSML_ZJFMKDFList' value='0.00'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                        <td width='auto' align='center'><input id='YSML_ZJFMKDFList' value='1.14'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                        <td width='auto' align='center'><input id='YSML_ZJFMKDFList' value='2.32'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                        <td width='auto' align='center'><input id='YSML_ZJFMKDFList' value='3.50'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                        <td width='auto' align='center'><input id='YSML_ZJFMKDFList' value='4.68'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                        <td width='auto' align='center'><input id='YSML_ZJFMKDFList' value='5.84'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                        <td width='auto' align='center'><input id='YSML_ZJFMKDFList' value='7.02'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                        <td width='auto' align='center'><input id='YSML_ZJFMKDFList' value='8.21'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                    </tr>
                                </table>
                            </div>
                            <div class='lineDiv'></div><span
                                style='color:#000000;font-family:Arial,Simsun;font-size:14;font-style:Normal;font-weight:Normal'>根据相关的参数，获得图型信息</span><input
                                id=YSML_ZJFMKDFMap value='k=0.235' type='text' class='String'
                                style='border:none; border-bottom:1px solid black;width:80px' /><br />
                            <div class='lineDiv'></div><span
                                style='color:#000000;font-family:Arial,Simsun;font-size:14;font-style:Normal;font-weight:Normal'>(3)
                                数据处理</span><br /><span
                                style='color:#000000;font-family:Arial,Simsun;font-size:14;font-style:Normal;font-weight:Normal'>利用逐差法处理数据：</span><br />
                            <div style='overflow: auto; max-width:900px;'>
                                <table id=YSML_ZCFSJList class='TList' border="1">
                                    <tr>
                                        <td width='auto' align='center'>i</td>
                                        <td width='auto' align='center'>0</td>
                                        <td width='auto' align='center'>1</td>
                                        <td width='auto' align='center'>2</td>
                                        <td width='auto' align='center'>3</td>
                                    </tr>
                                    <tr>
                                        <td width='auto' align='center'>bi= Li-L(i+4)(cm)</td>
                                        <td width='auto' align='center'><input id='YSML_ZCFSJList' value='4.68'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                        <td width='auto' align='center'><input id='YSML_ZCFSJList' value='4.70'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                        <td width='auto' align='center'><input id='YSML_ZCFSJList' value='4.70'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                        <td width='auto' align='center'><input id='YSML_ZCFSJList' value='4.71'
                                                type='number'
                                                style='border:none; border-bottom:1px solid black;width:80px' /></td>
                                    </tr>
                                </table>
                            </div>
                            <div class='lineDiv'></div><span
                                style='color:#000000;font-family:Arial,Simsun;font-size:14;font-style:Normal;font-weight:Normal'>其平均值b'(单位：cm)=</span><input
                                id=YSML_BPJZ value='1.17' type='number' class='inputtext'
                                style='border:none; border-bottom:1px solid black;width:80px' /><br />
                            <div class='lineDiv'></div><span
                                style='color:#000000;font-family:Arial,Simsun;font-size:14;font-style:Normal;font-weight:Normal'>取p=0.95，那么b的展伸不确定度为Ub0.95(单位：cm)=</span><input
                                id=YSML_BUncertainty value='0.18' type='number' class='inputtext'
                                style='border:none; border-bottom:1px solid black;width:80px' /><br />
                            <div class='lineDiv'></div><span
                                style='color:#000000;font-family:Arial,Simsun;font-size:14;font-style:Normal;font-weight:Normal'>根据杨氏模量的计算公式，求得杨氏模量平均值E'(单位：</span>
                            <image
                                src=''
                                width='40.4908059802104' height='14.8741736253834' /><span
                                style='color:#000000;font-family:Arial,Simsun;font-size:14;font-style:Normal;font-weight:Normal'>)=</span><input
                                id=YSML_EPJZ value='2.082' type='number' class='inputtext'
                                style='border:none; border-bottom:1px solid black;width:80px' /><br />
                            <div class='lineDiv'></div><span
                                style='color:#000000;font-family:Arial,Simsun;font-size:14;font-style:Normal;font-weight:Normal'>又根据不确定度的传递公式，那么有不确定度</span>
                            <image
                                src=''
                                width='18.0293013641011' height='16.5268595837593' /><span
                                style='color:#000000;font-family:Arial,Simsun;font-size:14;font-style:Normal;font-weight:Normal'>(</span><span
                                style='color:#000000;font-family:Arial,Simsun;font-size:14;font-style:Normal;font-weight:Normal'>单位：</span>
                            <image
                                src=''
                                width='40.4908059802104' height='14.8741736253834' /><span
                                style='color:#000000;font-family:Arial,Simsun;font-size:14;font-style:Normal;font-weight:Normal'>)=</span><input
                                id=YSML_EUncertainty value='0.082' type='number' class='inputtext'
                                style='border:none; border-bottom:1px solid black;width:80px' /><br />
                            <div class='lineDiv'></div><span
                                style='color:#000000;font-family:Arial,Simsun;font-size:14;font-style:Normal;font-weight:Normal'>取置信区间p=0.95,则杨氏模量的最终结果写成</span><span
                                style='color:#000000;font-family:Arial,Simsun;font-size:14;font-style:Normal;font-weight:Normal'>(</span><span
                                style='color:#000000;font-family:Arial,Simsun;font-size:14;font-style:Normal;font-weight:Normal'>单位：</span>
                            <image
                                src=''
                                width='40.4908059802104' height='14.8741736253834' /><span
                                style='color:#000000;font-family:Arial,Simsun;font-size:14;font-style:Normal;font-weight:Normal'>)=</span><input
                                id=YSML_EResult value='2.082' type='number' class='inputExp'
                                style='border:none; border-bottom:1px solid black;width:80px' />±<input id=YSML_EResult
                                type='number' value='0.017' class='inputExp'
                                style='border:none; border-bottom:1px solid black;width:80px' /><br />
                            <div class='lineDiv'></div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
        <div class="panel panel-default">
            <div class="panel-heading row"><span class='col-md-6 text-left'>思考题</span>
                <div class='col-md-6 text-right'></span><button class='btnUp' data-toggle="collapse"
                        data-target="#sktAll"
                        onclick='javascript:if($("#sktAll").hasClass("in")){this.className = "btnDown"}else{this.className = "btnUp"}'></button>
                </div>
            </div>
            <div class="panel-body">
                <div id='sktAll' class='panel-collapse collapse in'>
                    <div class="panel-heading row"><span class='col-md-6 text-left'><button class='btnUp'
                                data-toggle="collapse" data-target="#skt0"
                                onclick='javascript:if($("#skt0").hasClass("in")){this.className = "btnDown"}else{this.className = "btnUp"}'></button>思考题1</span>
                        <div class='col-md-6 text-right'></div>
                    </div>
                    <div class="panel-body">
                        <div class='skt panel-collapse collapse in' id='skt0'><span
                                style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>1.利用光杠杆把测微小长度△</span><span
                                style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>L</span><span
                                style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>变成测</span><span
                                style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>b</span><span
                                style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>，光杠杆的放大率为</span><span
                                style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>2D/L</span><span
                                style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>，根据此式能否以增加</span><span
                                style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>D</span><span
                                style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>减小</span>
                            <image
                                src=''
                                width='11.2697220135237' height='18.0315552216379' /><span
                                style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>来提高放大率，这样做有无好处？有无限度？应怎样考虑这个问题？</span><br />
                            <div style="margin: 30px auto;"><textarea class='editorClass' id="skt0Area" name="editor"
                                    placeholder="请输入文本……">D可以增加来增加放大率，为固定值，不能改变。有限度。如果距离太远，望远镜中很难观测到尺子。</textarea></div>
                        </div>
                    </div>
                    <div class="panel-heading row"><span class='col-md-6 text-left'><button class='btnUp'
                                data-toggle="collapse" data-target="#skt1"
                                onclick='javascript:if($("#skt1").hasClass("in")){this.className = "btnDown"}else{this.className = "btnUp"}'></button>思考题2</span>
                        <div class='col-md-6 text-right'></div>
                    </div>
                    <div class="panel-body">
                        <div class='skt panel-collapse collapse in' id='skt1'><span
                                style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>2</span><span
                                style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>.</span><span
                                style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>实验中，各个长度量用不同的仪器来测量是怎样考虑的，为什么？</span><br />
                            <div style="margin: 30px auto;"><textarea class='editorClass' id="skt1Area" name="editor"
                                    placeholder="请输入文本……">是根据测量的误差比来确定的，因为不同的仪器具有不同的量程，因此具有不同的误差。</textarea></div>
                        </div>
                    </div>
                    <div class="panel-heading row"><span class='col-md-6 text-left'><button class='btnUp'
                                data-toggle="collapse" data-target="#skt2"
                                onclick='javascript:if($("#skt2").hasClass("in")){this.className = "btnDown"}else{this.className = "btnUp"}'></button>思考题3</span>
                        <div class='col-md-6 text-right'></div>
                    </div>
                    <div class="panel-body">
                        <div class='skt panel-collapse collapse in' id='skt2'><span
                                style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>3</span><span
                                style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>.</span><span
                                style='color:#000000;font-family:Simsun;font-size:14px;font-style:Normal;font-weight:Normal'>用逐差法处理本实验数据有何优点？</span><br />
                            <div style="margin: 30px auto;"><textarea class='editorClass' id="skt2Area" name="editor"
                                    placeholder="请输入文本……">使用逐差法可以避免系统误差对实验的影响，并且把每个数据点都用上，由于基数较大，随机误差造成的影响不明显，结果更精确。</textarea>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
        <div class="panel panel-default">
            <div class="panel-heading row"><span class='col-md-7 text-left'>实验总结</span>
                <div class='col-md-5 text-right'><button class='btnUp' data-toggle="collapse" data-target="#SYZJ"
                        onclick='javascript:if($("#SYZJ").hasClass("in")){this.className = "btnDown"}else{this.className = "btnUp"}'></button>
                </div>
            </div>
            <div class="panel-body">
                <div class='zj panel-collapse collapse in' id='SYZJ'>
                    <div style="margin: 30px auto;"><textarea class='editorClass' id="syzjArea" name="editor"
                            placeholder="请输入文本……"><div>实验测得的金属杨氐模量为2.02*10^11pa，总的不确定度为3*10^9。<br></div>实验误差分析及注意事项:在拉伸法测量金属丝弹性模量实验中:平面镜与望远镜必须共轴。拧紧光杠杆平面镜的两个固定螺丝，避免平面镜自由转动，否则会引起一定的误差。调节光杠杆的臂长，并使光杠杆镜面法线与望远镜在同一水平面上。调节支架底脚螺丝使仪器平正，以水平仪上的水平泡居中为准。观察标尺时眼睛正对望远镜，不得忽高忽低引起视差。</textarea>
                    </div>
                </div>
            </div>
        </div>
    </div>
    <div class="panel panel-default">
        <div class="panel-heading row"><span class='col-md-7 text-left'>原始数据：</span>
            <div class='col-md-5 text-right'><button class='btnUp' data-toggle="collapse" data-target="#yssj"
                    onclick='javascript:if($("#yssj").hasClass("in")){this.className = "btnDown"}else{this.className = "btnUp"}'></button>
            </div>
        </div>
        <div class="panel-body">
            <div class='panel-collapse collapse in' style='min-height:67.87px;' id='yssj'>
                <div style="margin: 30px auto;"><textarea class='editorClass' id="yssjArea" name="editor"
                        placeholder="请输入文本……"><img src="" alt=""></textarea>
                </div>
            </div>
        </div>
    </div>

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